五、根据首字母提示，补全对话。（20分）
A: Many years ago, there w many trees on the Earth.
B: Yes, people m tables, chairs and many other things w wood.
A: We shouldn't c down too many trees. They help k the air clean.
B: You are right.
A: Should we use too many p bags?
B: No, we shouldn't.
A: Why?
B: B they are b for the Earth.
A: What can we do to h the Earth?
B: We can use c bags.

were; made; with; cut; keep; plastic; Because; bad; help; cloth

六、阅读短文，补全句子。（20分）
Wonderful World of Glass
Glass is very useful in our daily life. We can see glass everywhere.
Glass is clear. Look! The windows are made of glass. They let the sunshine in. Glass is also strong. It is good for holding water and food. It is easy to clean too. You can wash it many times and it is still clean. Glass helps us live a better life. Let's use glass carefully.
1. We can see everywhere according to the passage.
2. We can use glass to make according to this passage.
3. Glass is to hold water and food.
4. Glass is useful, clear and easy to .

1. glass 2. windows 3. strong 4. clean